force somebody’s hand

idiomPart ofhand

force somebody’s hand — idiom

1. To make someone do something they do not want to do, or do it sooner than intend

1.idiom
Definition

To make someone do something they do not want to do, or do it sooner than intended.

Example

The union threatened to strike to force the management's hand.

By leaking the information, they forced his hand to resign.